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2 results on '"Gu, Shanqiang"'

1. Research on Differentiated Lightning Protection Comprehensive Management for the 500-kV Power Network in the Area Near the Three Gorges Project

Author

Tong Xuefang, Gu Shanqiang, Hu Wen, Chen Jia-hong, Zhao Chun, Ruan Jiangjun, and Li Xiaolan

Subjects
Engineering, business.industry, Energy Engineering and Power Technology, Lightning, Construction engineering, Effect assessment, Electric power transmission, Shielding Failure, Power network, Electrical and Electronic Engineering, Risk assessment, Telecommunications, business, Risk management, Three gorges
Abstract

For the serious problem on lightning disaster risk of the Three Gorges outgoing lines, new technology, which is based on risk assessment, has been proposed for the lightning disaster defense for transmission lines. In order to realize lightning disaster risk assessment and defense technology, the procedure consists of analysis on lightning activity characteristics, lightning failures replay analysis, lightning disaster risk assessment, establishment and implement of lightning protection improvement, and practical defense effect assessment of lightning protection improvement. Implied on the lightning disaster defense for the Three Gorges outgoing lines, this technology has been verified with positive results. The widespread use of this technology would provide technical support for the differentiation design and improvement of lightning protection for transmission lines and for realizing the meticulous lightning protection in the management of transmission lines.

Published
2012

2. Development and Application of ?500 kV DC Transmission Line Arrester in China Power Grid.

Author

Gu, Shanqiang, Wan, Shuai, Chen, Jiahong, Li, Tao, and Wang, Jian

Subjects
*LIGHTNING-arresters, *DIRECT current power transmission, *ELECTRIC power, *ELECTRIC lines, *ELECTRIC power distribution grids, *LIGHTNING protection, *AIR gap (Engineering)
Abstract

In order to solve the frequently occurring lightning flashover problems on ±500 kV dc transmission lines in China, the authors have conducted the research on the dc line arrester since 2011. In this paper, the structure and installation, technical parameters, and protection performances, as well as their deterministic processes of the arrester are presented and analyzed in detail. In 2013, the authors successfully developed the arrester products, and the type tests show that they have excellent performance parameters and can act effectively against the lightning impulse and cutoff the dc follow current. By now more than 500 dc line arresters have been installed and used on seven ±500 kV dc transmission lines in eight provinces of China. About four years of operating experience shows that the arresters work safely and reliably over a long period of time, and have been effectively reducing the lightning flashover rate of the ±500 kV dc lines. [ABSTRACT FROM PUBLISHER]

Published
2018
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